Journal
NATURE CHEMISTRY
Volume 13, Issue 2, Pages -Publisher
NATURE RESEARCH
DOI: 10.1038/s41557-020-00589-8
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Funding
- National Natural Science Foundation of China [21971108, 21971111, 21702098, 21703118, 21732003, 21672099]
- Fundamental Research Funds for the Central Universities [020514380214]
- Natural Science Foundation of Jiangsu Province [BK20190006]
- 'Innovation & Entrepreneurship Talents Plan' of Jiangsu Province
- Jiangsu Six Peak Talent Project
- Shandong Provincial Natural Science Foundation [ZR2017MB038]
- Nanjing University
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This study presents a new method for manganese-catalysed dehydrosilylation and hydrosilylation of alkenes, utilizing a ligand-tuned metalloradical reactivity strategy. The reaction is redox-neutral and atom-economical, with broad substrate scope and excellent functional group tolerance, suitable for various synthetic applications on a gram scale.
Transition-metal-catalysed, redox-neutral dehydrosilylation of alkenes is a long-standing challenge in organic synthesis, with current methods suffering from low selectivity and narrow scope. In this study, we report a general and simple method for the manganese-catalysed dehydrosilylation and hydrosilylation of alkenes, with Mn-2(CO)(10) as a catalyst precursor, by using a ligand-tuned metalloradical reactivity strategy. This enables versatility and controllable selectivity with a 1:1 ratio of alkenes and silanes, and the synthetic robustness and practicality of this method are demonstrated using complex alkenes and light olefins. The selectivity of the reaction has been studied using density functional theory calculations, showing the use of an (PrPNP)-Pr-i ligand to favour dehydrosilylation, while a JackiePhos ligand favours hydrosilylation. The reaction is redox-neutral and atom-economical, exhibits a broad substrate scope and excellent functional group tolerance, and is suitable for various synthetic applications on a gram scale.
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